Introduction:
Overview of the course-Thermo chemistry of combustion-Concept of Adiabatic Flame Temperature-Numerical Problems Chemical Kinetics: Differences between equilibrium and rate controlled reactions- Global versus Elementary Reactions. Elementary reaction rates, bimolecular reactions and collision theory, other elementary reactions, Relation between rate coefficients and equilibrium constants, Steady-state Approximation. The mechanism for Uni-molecular reactions, Chain and Chain-Branching reactions.
Introduction to species Mass Transfer:
Rudiments of Mass Transfer, Mass Transfer Rate Laws, and Species Conservation. The Stefan Problem, Liquid-vapor interface boundary conditions, Droplet evaporation, Numerical.
Simplified Conservation Equations for Reacting Flows:
Overview-Overall Mass Conservation(Continuity)Species mass Conservation( Species Continuity) Momentum Conservation,1-D and 2-D forms, Energy Conservation-General 1-D Form, Shvab- Zeldovich Forms, Definition of Mixture Fraction.
Laminar Premixed Flames:
Physical Description, Definition, Principal characteristics, Typical Laboratory Flames. Simplified Analysis, Assumptions, Conservation Laws, Solution,
Factors Influencing flame velocity and Thickness:
temperature, pressure, Equivalence ratio, fuel type, Flame speed Correlations for Selected fuels, Quenching, Flammability, and Ignition Flame lift-off (Blow-off) and flash back, Concept of Flame stretch-Karlovitz number, Flame Stabilization
Introduction to Turbulent Flames:
Theories of flame propagation, thermal, diffusion and comprehensive theories turbulent length and time scales, Weak turbulent flames. Wrinkled Reaction Sheets, Distributed Reaction zones.
Pollutant Emissions:
Effects of emissions, Quantification of Emissions, Emission Indices, Corrected concentrations, Various Specific emission measures-Emissions from PremixedCombustion: Oxides of Nitrogen, Carbon Monoxide, Unburned Hydrocarbons, Catalytic After-treatment, Particulate Matter.Emissions from non-Premixed Combustion: Oxides of Nitrogen, Unburned Hydrocarbons and Carbon Monoxide, Particulate Matter and Oxides of Sulfur, Numerical Problems